Contents

27 July 2018
Vol 361, Issue 6400

About The Cover

Cover image expansion

COVER Strobe-lit view of the Summit supercomputer, capable of a peak performance of 200 petaflops, at the U.S. Department of Energy's Oak Ridge National Laboratory. Widespread advances in computing power and algorithm development have greatly enhanced modeling capabilities in astronomy, physics, chemistry and materials science, and biology. See the special section starting on page 342.
PHOTO: CARLOS JONES, COURTESY OF ORNL; CREATIVE SERVICES: RENEE MANNING, COURTESY OF ORNL